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（-6）-（-3）=（-6）+______=______．
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【简答题】Critics of hot spots hold the opinion that ________. A) hot spots are always as important as cold spots B) it is unwise to invest largely in hot spots C) governments should choose the best time to inv...
【单选题】Which of the following is TRUE?
A.
People's blood types decide their life.
B.
People's blood types decide their personality.
C.
A person of blood group O does well in thinking.
D.
A person of blood group AB is good at dealing with problems.
【单选题】But the doctor can't use just anyone's blood. The donor's blood has to be of a type that won't be destroyed by your blood. This statement means that______.
A.
the doctor can't use the donor's blood because your blood can destroy this
B.
the doctor has to choose a donor whose blood can not be destroyed by your blood
C.
the doctor has to choose a certain type of blood from a donor whose blood will not be destroyed by yours
D.
the doctor can choose a certain type of blood from any donors
【简答题】The blood spots on the floor _____________ the attention of the police.
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